Minecraft 21w40a

Everything below is measured by comparing the game files of 21w39a with 21w40a — not copied from patch notes.

New in-game text 17

Read from Mojang’s own release notes for Minecraft Snapshot 21w40a, published 2021-10-07. Every entry keeps its original bug ID.

22 issues fixed, read from Mojang’s own patch notes. Each entry keeps its original bug ID.

Fixed bugs in 21w40a 22

• MC-132306 Snowy grass without snow near lakes in snowy biome
• MC-169523 As of 18w06a, the sand, clay and gravel blocks no longer generate around small lakes
• MC-197688 Mountain Edge never generates
• MC-217906 Large amounts of axolotls cause performance issues
• MC-225842 Flowers can generate on large plants near lakes
• MC-225858 Seeds and flowers appear in ponds
• MC-227064 Floating grass can still generate above water lakes
• MC-229365 Large amounts of goats causes performance issues
• MC-236617 Mountains & Gravelly Mountains use their 1.17.1 biome ID name
• MC-236632 Banners without patterns do not render properly
• MC-236663 Command blocks do not display command in their UI
• MC-236736 No relief on treasure map or explorer maps
• MC-236896 Strange mini broken aquifer walls generating commonly on the surface
• MC-237490 The bottom parts of aquifers aren't always surrounded by blocks which can occasionally cause them to spill into caves in ways that appear bizarre
• MC-237666 Unused biomes still present in game files
• MC-237925 Opening world from 1.12.2 (or older) in latest snapshot regenerates random chunks
• MC-237933 Sweet Berries generate much too often
• MC-237950 Cave vines can generate without tip because prioritize_tip option is negated
• MC-237951 Cave vines can generate into water
• MC-237962 Entities bob their head up and down when targeting towards the player
• MC-238104 Blue Orchid generation has decreased
• MC-238265 version.json contains internal revision ID instead of game version ID

This build was part of the run-up to 1.18. Everything tested here landed in that release.